Drilling-machine.



K. L. J. FRAZER. DRILLING MACHINE.

APPLICATION FILED MAR. 16, 1910.

Patented Oct. 10, 1911.

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ATTORNEYS K. L. J. FRAZER. DRILLING momma. APPLIOATIOR FILED KABJG,1910'. 1,005,137, r Patented Oct. 10; 1911.

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K Y M s S llW/LNTUH [52!!161 J 1 711267? ATTORNEYS UNITED --STATESPATENT onr on.

KNUTE L. J. FRAZER, OF SANDPOINT, IDAHO, ASSIGNOR TO WESTERN DRILL MANU-FACTURING COMPANY.

DBILLING-MACHINE.

Specification of Letters Patent.

Application filed Karch 16, 1910. Serial No. 549,638.

T all whom it may concern:

Be it'known that I, KNUTE L.-J. FRAZER,\ a citizen of the United States,and a resident of Sandpoint, in the county of Bonner and State of Idaho,have invented a new and Improved Drilling-Machine, of which thefollowing is a full, clear, and'exact description.

An object of my invention is toprovide a drilling machine, moreparticularly adapted for drilling holes in tree stumps and the like,

' preparatory to blasting the same.

A further object of my invention is to provide a drilling machinemounted to swing on a frame, so that the drill can be used at variousangles and positions, depending wholly upon the work to be drilled.

For the purpose mentioned I provide a frame mounted to swing on avertical frame, with a squared shaft slidably and turn-- ably mounted onthe frame and provided with a coupling member adapted to removably holda drilling tool or the'like, the said shaft being connected withsuitable driving mechanism and means for operating the drill to move ittoward or from the work.

Reference is to be had to the accompany- ,ing drawings forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the views, and in which- Figure ,1 is a sideelevation of my invention, showing the same in operation to drill a holein a treestump, parts being broken away to disclose the'underlyingstructure; Fig. 2 is a partial end view of my invention, disclosingvarious operating means and connections; Fig. 3 is a fragmentary planview showing the frame and parts adjacent and connected thereto; Fig. 4is a fragmentary plan view showing in section the manner in which theframe is mounted on the vertical frame, and Fig. 5 is a partialsectional elevation, showing the means for feeding the drill toward orfrom the work.

In a large number of drilling machines now generally used, a feed screwis em-- ployed, which not only limits thelength of the feed but it is anexpensive article of manufacture, and great trouble is often experiencedwhen using'the same. In my device I employ feeding means which enablethe drill to be fed into the work a great distance, depending entirelyupon the length of the frame mounted on the vertical frame.

Referring'more particularly to the various figures, I provide a verticalframe A, having suitable standards B and a cross bar C, and mounted toswing on the frame-A at the intersection of the standards B is a frameD. The frame D is provided with suitable bearings E, adapted to supporta squared shaft F, having collars G thereon engaging the bearings E, sothatthe shaft F can be easily turned in the bearings E. A bevel gearwheel H is slidably mounted on the shaft F and meshes with a secondbevel gearwheel I, mounted on a shaft J, journaled on the frame A, withasuitable fly-wheel K on the end of the shaft J, as will easily be seenby'referring to Fig. 2. A gear wheel meshes with a second gear wheel Mmounted on a shaft N on the cross bar C, and secured to the shaft N is ahandle 0, for operating the various parts of the operating mechanism, aswill be hereinafter more fully explained. The frame D is provided with adepending portion P, having a rack Q, in

engagement with a pinion R mounted on the frame D, and the dependingportion P is mounted on the shaft F by suitable collars S.

At one end of the shaft F a coupling member T is provided and adapted toremovably hold a drill U for drilling a hole in a stump V, and mountedon the frame D and adapted to removably engage the stump V for holdingthe drill in posltion, is achain W. The depending frame portion P isadapted to slide on rollers X mounted on the frame D, and suitableadjusting screws Y are provided for adjusting the shaft J.

When the device is to be employed to drill a-h01e, as shown in Fig. 1,the chain W. is secured around the work V with the ends of the chainengaging the frame D to hold the drill in position and prevent the samefrom tilting backward. To drill the hole in the work or stump V, thehandle 0 is turned, thereby operating the gears and bevel gear wheels toturn the shaft F and the drill U.

To feed the drill into the work, the pinion a in the appended claim.

.ings and ployed on this device. It will be still further understoodthat I do not limit myself to the'constructi0n shown, the scope of myinvention being clearly set forth anddefined Having thus described myinvention, I claim as new and desire'to secure by Letters Patent:

. In a drill, the combination of a portable frame normally stationary, asecond frame mounted to swing-upon said portable frame, a plurality ofbearings carried by said second frame, a shaft supported'by saidbearadapted to turn and also to 'move in the general direction-of itslength, a gear wheel slidably mounted upon said shaft and adapted toturn, a second shaft mounted upon said portable frame and extending in adlrection crossing the length of said first mentioned shaft, a secondgear wheel mounted upon said second mentioned shaft and Y meshing withsaid first mentioned gear wheel, means for rotating said secondmentioned gear wheel so as to rotate said-first mentioned gear wheel andits shaft, a rack carried by said secopd mentioned'frame, said Intestimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

KNUTE L. J. FRAZER.

Witnesses:

WM. T. MANN," A. K. BowDEN'."

